E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/30
E21B 43/28 (2006.01)
Patent
CA 1092965
ABSTRACT OF THE DISCLOSURE METHOD OF RECOVERING COAL IN AQUEOUS SLURRY FORM A method of in-situ coal recovery in slurry form from a coal deposit by first contacting the coal with a gaseous mixture of an oxygen-containing gas containing vaporized NO2, then with an aqeous alkaline solution to slurry the coal, and then recovering the slurried coal from the deposit.
310581
Chevron Research And Technology Company
Smart & Biggar
LandOfFree
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